WO2012010101A1 - Method and device for providing supplementary content in 3d communication system - Google Patents
Method and device for providing supplementary content in 3d communication system Download PDFInfo
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- WO2012010101A1 WO2012010101A1 PCT/CN2011/077434 CN2011077434W WO2012010101A1 WO 2012010101 A1 WO2012010101 A1 WO 2012010101A1 CN 2011077434 W CN2011077434 W CN 2011077434W WO 2012010101 A1 WO2012010101 A1 WO 2012010101A1
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- WIPO (PCT)
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- event
- supplementary content
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/161—Encoding, multiplexing or demultiplexing different image signal components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/167—Synchronising or controlling image signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
Definitions
- the present invention relates to a method and a device for providing a main 3D content and a
- Digital communication systems such as DVB-H
- DVB-T Digital Video Broadcasting - Terrestrial
- client-server communication system enable end users to receive digital contents including video, audio, and data.
- a user may receive digital contents over a cable or wireless digital communication network.
- a user may receive video data such as a broadcast program in a data stream as main content .
- a supplementary content associated with the main content such as an interactive multimedia content including
- program title may also be available.
- the supplementary content is a collection of multimedia data, such as graphics, text, audio and video etc, which may change over time based on the main content which may be an audio/video (A/V) stream.
- the A/V stream has its own timeline, here, the timeline is a term used to describe that a video/audio sequence is ordered by time stamp.
- the corresponding interactive multimedia content also has a timeline, which relates to this A/V stream timeline by a reference, such as a start point tag. That is, there is a temporal synchronization between the corresponding interactive multimedia content and the A/V stream.
- the start point tag refers the specific time point of the timeline of A/V stream. When the A/V stream plays to the specific time point, an event is triggered to play the corresponding interactive multimedia content.
- LASeR Lightweight Application Scene Representation
- Adobe Flash and Microsoft SilverLight are the two popular 2D interactive media technologies used in the Internet.
- the 2D content related information service usually includes a main content (e.g. 2D live video, animation, etc.) and a supplementary content (e.g. video, audio, text, animation, graphics, etc.), while the current rich media specifications only focus on how to present different 2D media elements on time line by defining the load, start, stop, and unload time of each media element.
- a main content e.g. 2D live video, animation, etc.
- a supplementary content e.g. video, audio, text, animation, graphics, etc.
- 3D interfaces and interactions have been attracting a lot of interests in both academia and industry. But due to the hardware limits especially on 3D inputs and displays, the usability of 3D interface is still not good enough for mass market. However, with the recent development and deployment of 3D stereoscopic displays, the 3D displays start to come into the commercial market instead of the very limited professional market.
- the basic idea of 3D stereo appeared in 19th century. Because our two eyes are approximately 6.5cm apart from each other, each eye sees a slightly different angle of view of a scene we are looking at and provides a different perspective. Our brain can then create the feeling of depth within the scene based on the two views from our eyes.
- Figure 1 shows the basic concept of the 3D stereoscopic displays, wherein Z is the depth of perceived object and D is the distance to the screen, four objects are perceived as in front of the screen (the car) , on the screen (the column) , behind the screen (the tree) and at the infinite distance (the box) . If the left figure of the object can be seen by the right eye, and the right figure of the object can be seen by the left eye, the depth of the object will be positive and perceived as in front of the screen such as the car. Otherwise the depth of the object will be negative, and perceived as behind the screen such as the tree. If the two figures of the object are just opposite to the two eyes, the depth of the object will be infinite. Most modern 3D displays are built based on the 3D stereo concepts, with the major difference on how to separate the two views to left and right eyes respectively.
- 3D content related information service one may expect 3D interactive media transmission and display including main content and supplementary content. Therefore, it is important to have the triggering and displaying of the supplementary content in 3D communication system.
- the invention concerns a method for providing a main 3D content and a supplementary content used in a 3D multimedia device, comprising: displaying the main 3D content; and triggering the supplementary content by a 3D related event of the main 3D content .
- the invention also concerns a 3D multimedia device for providing a main 3D content and a supplementary content, comprising: a 3D display for displaying the main 3D content; and a user terminal for triggering the display of the supplementary content by a 3D related event of the main 3D content .
- the invention also concerns a method for providing multimedia contents including a main 3D content and a supplementary content, comprising: providing the main 3D content to be played; and generating the supplementary content for being triggered by a 3D related event of the main 3D content, and played together with the main 3D content or separately.
- Fig. 1 shows the basic concept of the 3D
- Fig. 2 is a block diagram showing a 3D multimedia device according to an embodiment of the invention.
- Fig. 3 is a block diagram showing an event trigger list according to an embodiment of the invention.
- Fig. 4 is an illustrative example showing event triggers according to the embodiment of the invention.
- Fig. 5 is an illustrative example showing 3D supplementary content triggers according to the
- Fig. 6 is a flow chart showing a method for providing supplementary content according to the
- Fig. 2 is a block diagram showing a 3D multimedia device 100 according to an embodiment of the invention.
- the 3D multimedia device 100 includes a user terminal 101 and at least one 3D display 102.
- the user terminal 101 and 3D display 102 can be combined into a single device, or can be separate devices such as Set Top Box (STB) , a DVD / BD player or a receiver, and a display.
- the user terminal 101 includes a 3D interactive media de-multiplexer (demux) 105, a main 3D content decoder 103, a supplementary content decoder 104, an event engine 107, an event trigger list module 106, and a configuration updater 108.
- demux 3D interactive media de-multiplexer
- the 3D interactive media content are created and transmitted from a head-end device (not shown) and the process of the terminal 101 starts when the terminal receives the multimedia content including the main and supplementary content.
- the head end device is a kind of device that provides such functions as
- the multimedia content can also be stored in a removable storage medium such as a disc (not shown) to be played by the client device 100, or stored in a memory of the client device.
- the multimedia contents including a main 3D content and a supplementary content are provided to the client device 100.
- the main 3D content will be played on the display 102, and the supplementary content can be triggered by a 3D related event of the main 3D content, and played
- supplementary content is not limited to 3D
- multimedia contents can also be 2D content or even can be audio information.
- multimedia contents further comprise event triggers including 3D related event
- a 3D event trigger may be a conditional expression in a description file of the main 3D content, such as a given region or object's depth in the main 3D content exceeding a certain value, or a given object's size in the main 3D content becoming smaller or bigger than a threshold.
- the main 3D content and the supplementary content are linked by the conditional expression in the description file including the related triggers.
- the 3D interactive media demux 105 at the user terminal 101 analyzes the received multimedia contents through a network or from a storage medium, and extracts the main 3D content, the supplementary content, and the event triggers linking them together.
- the main 3D content may be 3D live broadcasting videos or 3D animations
- the supplementary content could include 3D video clips, 3D graphic models, 3D user interfaces, 3D applets or widgets
- the event triggers could be some combinations of conditional expression on time, 3D object position, 3D object posture, 3D object scale, covering relationship of the objects, user selections, and system events.
- the main 3D content decoder 103 After been decoded by the main 3D content decoder 103, the main 3D content is played on the 3D display 102.
- the supplementary content is stored in a local buffer with given validness period and ready to be rendered, and the event triggers in the description file are pushed into an event trigger list module 106 sorted by trigger conditions.
- the trigger conditions can be a specific time point of the timeline of the main 3D content, or a 3D related trigger.
- the 3D related trigger can be a specific value or range of the 3D depth, 3D position, 3D posture and 3D scale of the main 3D content, covering relationship of the objects and so on.
- Fig. 3 is a block diagram showing an event trigger list according to an embodiment of the invention.
- Event Trigger 1, Event Trigger n are elements of the Event Trigger List.
- Each event trigger includes a trigger condition as mentioned above, and a responding event.
- the responding event includes several actions to be
- Configuration information can be position, posture, scale and other configurable parameters of the supplementary content.
- the configuration information can be updated by the
- the depth trigger position Z type
- the depth information can be calculated using image processing algorithms, such as edge detection, feature point correlation, etc.
- the checking frequency can be a range from each video frame to several hours or days, depending on the pre-defined real time level in the event trigger.
- supplemental content is then displayed on the display 102.
- the supplementary content and the main 3D content can be shown on the same display or separate displays.
- the event engine 107 will notify the configuration updater 108. Then the
- configurations of the supplementary content are updated by the configuration updater 108 along with the change of the main 3D content.
- the configuration of supplementary content is stored in the event trigger list module 106 of the client device 100 during their life cycle.
- updater 108 can modify the configuration data for the related supplementary content, such as updating the
- Figure 4 is an illustrative example showing a 3D supplementary content trigger according to the embodiment of the invention. It shows three examples of event
- triggers shown in the 3D display 102 based on 3D related trigger.
- the original object A of the main 3D content can be either 3D object/regions/patterns from 3D video or 3D graphic models from 3D animations
- the pre-defined event triggers stored in the event trigger list will be triggered.
- the main 3D content could be the live broadcasting of 3D world cup football match.
- a 3D related event trigger is defined with the condition that the ball has moved across a given 3D region (the goal) .
- condition of the event trigger can be checked in the real-time with the current image processing techniques, such as the combination of video frame extraction, image segmentation, edge
- the event engine 107 of the user terminal 101 searches the local buffer to find the
- the associated supplementary content i.e. the billboard and all players' 3D information. Then the supplementary content are updated, that is the score on the billboard is updated and presented on the 3D display 102 according to pre-defined 3D
- the event engine 107 also finds the specific shooter's 3D information and presents it similarly.
- Fig.5 is an illustrative example showing 3D
- supplementary content are fetched from the related supplementary content event trigger in the event trigger list by the configuration updater 108.
- event engine 107 will notify the configuration updater 108.
- the configurations of the supplementary content are updated by the configuration updater 108 according to the changes of the main 3D content to provide user a consistent feeling on the whole presentation. For instance, the depth value of an
- the information bar such as a bar of text information, e.g. the subtitle of the video should be dynamically adjusted when the depth value of user focused object in the main 3D video changes significantly, so that user does not need to move his eye balls from the main object and the information bar frequently.
- An example is shown in Figure 5 with the supplementary content (i.e. the box A) always sticking to the interested object (i.e. the helicopter) in the main 3D content when it is moving out of the screen.
- the 3D configuration of the box A is updated during the whole process.
- the 3D configuration information along the timeline for supplementary content is pre-defined or automatically generated from the main 3D content using pattern recognition and motion tracking algorithms in computer vision technologies, such as the position of box A in Figure 5 can be pre-defined or automatically generated using the position of the
- helicopter can be detected using the image processing techniques similar to those used to detect goal shooting example.
- the supplementary content gets expired, its playing will be stopped and removed from the local buffer.
- the user can also stop the playing back of the main 3D content or supplementary content at any time.
- content related events with different 3D related trigger types are provided, and 3D supplementary content for 3D content related information service with a updated configuration based on the main 3D content are presented in 3D display systems, to give users an exciting but still comfortable experience .
- associated event is then started including presenting the related supplementary content.
- supplementary content also need to be adapted to the depth map of the main 3D content .
- this invention is aimed to solve the problem on how to trigger content related events and present 3D supplementary content for 3D interactive media service in 3D display systems.
- Fig. 6 is a flow chart showing a method for
- the multimedia contents are received by the user terminal 101 of the 3D multimedia device 100.
- the demux 105 extracts the main 3D content, the supplementary content, and the event triggers from the received multimedia contents, and at step 503 the main 3D content is decoded and displayed on the 3D display 102.
- the event engine 107 checks 3D related event trigger
- the decoded supplementary content is displayed on the same 3D display with the main 3D content or another display.
- the 3D configuration of the supplementary content is updated along with the main 3D content .
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011800355573A CN103329542A (en) | 2010-07-21 | 2011-07-21 | Method and device for providing supplementary content in 3D communication system |
EP11809289.9A EP2596641A4 (en) | 2010-07-21 | 2011-07-21 | Method and device for providing supplementary content in 3d communication system |
KR1020137004319A KR101883018B1 (en) | 2010-07-21 | 2011-07-21 | Method and device for providing supplementary content in 3d communication system |
JP2013519948A JP2013535889A (en) | 2010-07-21 | 2011-07-21 | Method and apparatus for providing auxiliary content in a three-dimensional communication system |
US13/810,224 US20130120544A1 (en) | 2010-07-21 | 2011-07-21 | Method and device for providing supplementary content in 3d communication system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010001100 | 2010-07-21 | ||
CNPCT/CN2010/001100 | 2010-07-21 |
Publications (1)
Publication Number | Publication Date |
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WO2012010101A1 true WO2012010101A1 (en) | 2012-01-26 |
Family
ID=45496526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/CN2011/077434 WO2012010101A1 (en) | 2010-07-21 | 2011-07-21 | Method and device for providing supplementary content in 3d communication system |
Country Status (5)
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---|---|
US (1) | US20130120544A1 (en) |
EP (1) | EP2596641A4 (en) |
JP (1) | JP2013535889A (en) |
KR (1) | KR101883018B1 (en) |
WO (1) | WO2012010101A1 (en) |
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US10972530B2 (en) | 2016-12-30 | 2021-04-06 | Google Llc | Audio-based data structure generation |
US8688514B1 (en) | 2011-06-24 | 2014-04-01 | Google Inc. | Ad selection using image data |
US11093692B2 (en) * | 2011-11-14 | 2021-08-17 | Google Llc | Extracting audiovisual features from digital components |
US9762889B2 (en) * | 2013-05-08 | 2017-09-12 | Sony Corporation | Subtitle detection for stereoscopic video contents |
US11030239B2 (en) | 2013-05-31 | 2021-06-08 | Google Llc | Audio based entity-action pair based selection |
WO2016103067A1 (en) * | 2014-12-22 | 2016-06-30 | Husqvarna Ab | Garden mapping and planning via robotic vehicle |
CN106161988A (en) * | 2015-03-26 | 2016-11-23 | 成都理想境界科技有限公司 | A kind of augmented reality video generation method |
US9865305B2 (en) | 2015-08-21 | 2018-01-09 | Samsung Electronics Co., Ltd. | System and method for interactive 360-degree video creation |
CN106791786B (en) * | 2016-12-29 | 2019-04-12 | 北京奇艺世纪科技有限公司 | Live broadcasting method and device |
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Also Published As
Publication number | Publication date |
---|---|
KR20130100994A (en) | 2013-09-12 |
JP2013535889A (en) | 2013-09-12 |
US20130120544A1 (en) | 2013-05-16 |
EP2596641A4 (en) | 2014-07-30 |
EP2596641A1 (en) | 2013-05-29 |
KR101883018B1 (en) | 2018-07-27 |
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